@jclo13
Two general guidelines has been ignored in the github post, which are sensor & ground isolation and duration of excitation :

“
Sensors must be powered individually, and the ground must be isolated from sensor to sensor. Even if powered individually, an open ground path to another un-powered sensor can't be allowed. This is best accomplished using multiplexers to open and close the appropriate channels.
“
For additional details please refer to :www.irrometer.com/200ss.html